Paper-making roll.



PATENTB'D MAR. 7, i905.

H. PARKER.

PAPER MAKING ROLL. ABPLIoA'uoN FILED .TUNE 1, 190s.

lo\ W e UNITED STATES Patented March 7, 1905.

'PATENT OEEICE.

HOWARD PARKER, OF NASHUA, NEW HAMPSHIRE, ASSIGNOR TO IMPROVEDv Y PAPER MACHINERY COMPANY, OF CASTINE, MAINE, AND NASHUA, NEW HAMPSHIRE, A CORPORATION OF MAINE.

PAPER-MAKING ROLL.

SPECIFICATION forming part of Letters Patent No. 784,223, dated March 1905.

Application iiled June l, 1903. Serial No. 159,526.

To all whom, it may concern:

Be it known that I, HOWARD PARKER, acitizen of the United States of America, residing at Nashua, in the county of Hillsboro and State of New Hampshire, have invented certain new and useful Improvements in Paper Making Rolls, of which the following is aspeciiication.

The object of my invention is to produce a devicel of the class specified having features of novelty and advantage.

The drawing showsan embodiment of my invention in central vertical section.

@denotes a roll which may be of any desired construction having a foraminous surface and preferably being provided with lengthwise compartments formed by suitable partitions. The roll is supported on the tubular sleeve a, which extends beyond the roll at each end and is supported in suitable bearings, as shown at c2. Within the roll this sleeve is provided with oppositely-arranged conical portions a3,which are perforated, as at c4.' Suitable means are provided, as shown at c5, for rotating the roll. Plugs b are located in the extensions of the tubular sleeve and are provided with conical ends L', adapted in shape to the conical portions cs of the tubular sleeve a. The conical ends of the plugs are perforated part way around their periphery, as shown at b2, which perforations are adapted to register with the perforations a* through the' conical portions of the sleeve. These plugs are supported at their outer ends by the tubular sleeve, as shown at b3, and are held against rotation by any suit able means, as shown at 5*. Suction is applied to the. interior of the roll et by connecting one of the plugs with a suction apparatus by means of the pipe c. The other plug is closed atfits end, or it may be connected with another sucy tion apparatus. The suction action generated inside ofthe roll and between the ends of the plugs by suitable suction apparatus connected at the end of the pipe c tends to drawthe two plugs toward one another and seat them in the conical portions of the tubular sleeve, insuring an air-tight lit, so that the di'erent compartments in the roll as it rotatesI about the plugs will be subjected to the action of the suction as the perforations c* .register with the perforations 712.

I claim as my invention- 1. A paper-making roll havinga foraminous surface; a sleeve supporting said roll and having at each end non-cylindrical portions which are perforated; and plugs having perforated ends adapted in shape to the non-cylindrical portions of the sleeve, said plugs being independent of one another, as and for the purposes specified.

2. A paper-making roll supported on a suitable sleeve having oppositely-arranged noncylindrical portions, independent plugs having ends adapted in shape to the oppositely-arranged non-cylindrical portions of the sleeve, and registering perforations in the non-cylindricalfparts, vsubstantially as described.

3. SApaper-making roll-havingaforaminousl surface, a supportlng-sleeve therefor, plugs independent of one another located within said sleeve, non-cylindrical coacting bearing parts on the sleeve and plugs having registering perforations, said plugs being connected with a vacuum-pump or its equivalent, as and for the purpose set forth.

4. A roll having a foraminous surface, a tubular supporting-sleeve therefor, tubular plugs independent of one another located within said sleeve, and non-cylindrical coacting bearing-surfaces on the sleeve and on the plugs, a closure for the outer end of one of the plugs and a vacuum-pump or its equivalent attached to the outer end ofthe other plug, as and for the purposes set forth.

In testimony whereof I aflix my signature in lpresence of two witnesses. f

V'HOWARD PARKER. Witnesses:

B. A. PEAsE,

` L. M. CARLEToN. f 

